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System Configuration

19

When 

LARGE

is selected, a full-range

output will be sent to the front left and
right outputs.

5. When you have completed your

selection for the front channel, press
the 

button 

i ˜

to confirm the

selection, and then press the 

⁄

¤

buttons 

g

on the remote or the

buttons

¸

on the front

panel to change the display to 

CEN

SPEAKER

(Center).

6. Press the 

button 

i ˜

again,

and use the 

⁄

¤

buttons 

g

on the

remote, or the

buttons

¸

on

the front panel, to select the option that
best describes your system based on the
speaker definitions shown above.

When 

CEN SP SMALL

is selected,

low-frequency center channel sounds
will be sent to the Fronts (if they are
„Large“) and sub output.

When 

CEN SP LARGE

is selected,

a full-range output will be sent to the
center speaker output.

When 

CEN SP NONE

is selected, no

signals will be sent to the center channel
output. The receiver will operate in a
“phantom” center channel mode and
center channel information will be sent
to the left and right front channel
outputs.

7. When you have completed your

selection for the center channel, press
the 

button 

i ˜

, and then press

the 

⁄

¤

buttons 

g

on the remote or

the

buttons

¸

on the front

panel to change the display to 

SUR

SPEAKER

(surround speakers).

8. Press the 

button 

i ˜

again,

and then use the 

⁄

¤

buttons 

g

on

the remote or the

buttons

¸

on the front panel to select the option
that best describes your system based on
the speaker definitions shown above.

When 

SUR SP SMALL

is selected,

low-frequency surround channel
sounds will be kept away from the
surround speakers and not sent to any
other channel (Analog Surround
mode) or sent to the Fronts (if they are
„Large“) and to the Subwoofer output
(Dolby Digital).

When 

SUR SP LARGE

is selected, a

full-range output will be sent to the
surround channel outputs.

When 

SUR SP NONE

is selected,

surround sound information will be
split between the front left and front
right outputs. Note that for optimal
performance when no surround
speakers are in use, the Dolby 3 Stereo
mode should be used instead of Dolby
Pro Logic.

9. When you have completed your

selection for the surround channel,
press the 

button 

i ˜

, and then

press the 

⁄

¤

buttons 

g

on the

remote or the

buttons

¸

on

the front panel to change the display to

SÐW SPEAKER

(Subwoofer).

10. Press the 

button 

i ˜

, and then

press the 

⁄

¤

buttons 

g

on the

remote or the

buttons

¸

on

the front panel to select the option that
best describes your system.

Select 

S-W SP ON

if a subwoofer is

connected to the 

ª

.

Select 

S-W SP OFF

if a subwoofer is

NOT connected to your system. Note
that when no subwoofer is selected, low-
frequency sounds below 100Hz will be
sent to the front left/right speakers. This
option is not available when the front
speakers are set to 

SMALL

.

11. When the subwoofer selection has been

made, press the 

button 

i ˜

to

confirm the selection and press it again
or simply wait some seconds to return
to normal operation.

NOTE: When you use a Subwoofer/
Satellite system with one or two passive
subwoofers the complete system must be
connected to the front speaker outputs only
(in the same way as two conventional
speakers are connected, see instruction of
your speaker system). The front speakers
must be set to „LARGE“ and the Subwoofer
„OFF“.

System Configuration

20

Output Level Adjustment
Output level adjustment is a key part of the
configuration process for any surround
sound product. It is particularly important
for a Dolby Digital receiver such as the
AVR45RDS, as correct outputs will ensure
that you hear sound tracks in their proper
place with the proper intensity.

IMPORTANT NOTE: Many listeners are
often confused about the operation of the
surround channels. While some assume
that sound should always be coming from
each speaker, most of the time there will be
little or no sound in the surround channels.
This is because they are only used when a
movie director or sound mixer specifically
places sound there to create ambiance, an
effect or to continue action from the front
of the room to the rear. When the output
levels are properly set it is normal for rear/
surround speakers to operate only
occasionally. Artificially increasing the
volume to the rear speakers may destroy the
illusion of an enveloping sound field that
duplicates the way you hear sound in a
movie theater or concert hall.

Before beginning the adjustment process
make certain that all speaker connections
have been properly made. The system
volume should be set to the level that you
will use during a typical listening session.
Finally, make certain that the 

7

is set to the center “12

o’clock” position.

To adjust and calibrate the output levels,
follow these steps. For accurate calibration,
it is a good idea to make these adjustments
from the location in your room that is your
favorite listening position:

1. Put the AVR45RDS in the Dolby Pro

Logic mode by pressing the 

Ó

on the front panel

or by pressing the 

y

on the remote, followed

by the 

⁄

¤

buttons 

g

until 

PRO

LOGIC

appears in the 

V

and the

indicator 

F

lights.

2. Press the 

button 

e Ò

on

the remote or front panel. The words 

T -T FL 0dB

will appear in the

V

, and

the letters 

FL

(front left) will flash

once each second.

3. At this point, the test noise will begin to

circulate among all installed speakers
in a clockwise rotation, while each
speaker is identified by the letters 

FL

,

C

, 

FR

, 

SR

, 

SL

(Front Left, Center,

Front Right, Surround Right, Surround
Left) flashing in the display.

NOTE: This is a good time to verify that
the speakers have been properly
connected. As the test noise circulates,
listen to make certain that the sound
comes from the speaker position shown
in the Main Information Display. If the
sound from a speaker location does
NOT match the position indicated in
the display, turn the AVR45RDS off and
check the speaker wiring to make
certain that each speaker is connected
to the correct output terminal.

4. After checking for speaker placement,

let the test noise circulate again, and
listen to see which channels sound
louder than the others. Using the front
left (

FL

in the display) speaker as a

reference, press the 

⁄

¤

buttons 

g

on the remote or the

buttons

¸

on the front panel on each channel

to begin to bring them to the same
level. Note that when one of the buttons
is pushed, the test noise circulation will
pause on the channel being adjusted to
give you time to make the adjustment.
When you release the button, the
circulation will resume after some
seconds.

5. Continue to adjust the individual

speakers until they all have the same
volume. Note that adjustments should
be made with the 

⁄

¤

buttons 

g

on

the remote or the 

buttons

¸

on the front panel only, NOT the main
volume controls. Each time a speakers
adjustment is made press the 

button 

i ˜

as long as the speaker’s

letters are still flashing in the display to
memorize the change.

NOTE: The subwoofer output level is not
adjustable using the test tone. To change
the subwoofer level, follow the steps for
Output Level Trim Adjustment on page 28.

6. When you have adjusted the outputs so

that all channels have the same level,
press the 

button 

e Ò

on

the remote or front panel to complete
the adjustment.

System Configuration

21

Delay Settings
One aspect of the surround modes is the
delay of audio signals between the front
speakers and the rear speakers. Each
surround mode is factory preset with a
specific delay time, but it is possible to
individually adjust the delay timing to
custom tailor the sound to your individual
taste and the acoustic conditions in your
listening room or home theater. 

The factory setting is appropriate for most
rooms, but some installations create an
uncommon distance between the front and
surround speakers that may cause the
arrival of front channel sounds to become
disconnected from surround channel
sounds.

To resynchronize the front and surround
channels, follow these steps:

1. Measure the distance from the
listening/viewing position to the 
front speakers in meters.

2. Measure the distance from the
listening/viewing position to the
surround speakers. 

3. Subtract the distance to the surround
speakers from the distance to the front
speakers and multiply the result by 3.

a. When setting the delay time for the
Dolby Digital surround mode, the
optimal delay time is the resulting
figure. For example, if the front
speakers are 3m away and the
surround speakers are 1m away, the
optimal delay time is figured as 
(3-1)x3=6. Thus, in this example,
the delay should be set at six
milliseconds.

b. When setting the delay time for
Dolby Pro Logic take the result of the
calculation above and add 15 to
obtain the optimal delay time. For
example, if the front speakers are 3m
away and the surround speakers are
1m away, the optimal delay time is
figured as (3-1)x3+15=21. Thus in
this example, the delay should be set
at twenty milliseconds.

NOTE: The Theater, Hall 1 and Hall 2
modes use a fixed, non-adjustable delay
time.

The Dolby Digital mode also provides a
separate setting for the center channel
delay mode, since the discrete nature of
Dolby Digital signals makes the location of
the center channel speaker more critical.
To calculate the delay for the center
channel, measure the distance from the
preferred listening position in the center of
the room to both the center channel
speaker and either the left or right speaker. 

If the distances are equal no further
adjustment is required and the center
delay should be set to zero. If the distance
to the front speakers is greater than the
distance to the center speaker you may
wish to reposition the speakers by moving
the front left/right speakers closer to the
listening position or the center speaker
further away from the listening position.

If repositioning of the speakers is not
possible, adjust the center delay time so
that you add one millisecond of center
channel delay for every 30cm that the
distance to the center speaker lags behind
the front speakers. For example, if the
front left/right speakers are each 3m from
the listening position and the center
channel speaker is 2.4m away, the delay is
figured as 300cm-240cm=60cm,
suggesting an optimal center delay of 
2 milliseconds.

To set the delay times, follow these steps:

1. Put the AVR45RDS in the Dolby Pro

Logic mode by pressing the 

Ó

on the front

panel, or by pressing the 

y

on the remote,

followed by the 

⁄

¤

buttons 

g

until

PRO LOGIC

appears in the 

V

and the

indicator 

F

lights.

2. Press the 

button 

v ı

on the

remote or front panel. The words 

S DELAY TIME

(Surround Delay

Time) will appear in the

V

.

System Configuration

22

3. Press the 

button 

i ˜

.

4. Adjust the delay time by pressing the

⁄

¤

buttons 

g

on the remote or the

buttons

¸

on the front

panel until the delay time figure,
calculated using the formula entered
above for the Dolby Pro Logic mode,
appears in the display. Note that the
time can be selected within a range
from 15 msec to 30 msec. Then press
the 

button 

i ˜

to confirm the

delay time for the Dolby Pro Logic
mode.

5. To adjust the delay time for the Dolby

Digital mode, select a digital input by
pressing the 

button 

w ˆ

.

Press the 

⁄

¤

buttons 

g

on the

remote or the

buttons

¸

on

the front panel until either 

COAX

or

OPTICAL

appear in the 

V

. Note that

for this adjustment, either input may be
selected.

6. Press the 

button 

i ˜

.

7. Select the Dolby Digital mode either by

pressing the front panel 

(

or by pressing

the 

y

on the remote, and then pressing the

⁄

¤

buttons 

g

on the remote until

DOLBY AC-3

appears in the 

V

. Ignore any

“

NO DATA

” message that may

appear.

8. Press the 

button 

v ı

on the

remote or front panel. The words 

S DELAY TIME

appear in the

V

.

9. Press the 

button 

i ˜

.

10. Press the 

⁄

¤

buttons 

g 

on the

remote until the delay time for the
surround channels calculated using
the formula above for the Dolby Digital
mode appears in the display. A delay
time up to 15 msec may be selected.

11. Press the 

button 

i ˜

to store

the setting into memory.

12. If no adjustment is needed for the

center channel delay, press the 

button 

i ˜

again or wait for some

seconds to return to the normal mode.
If the calculations outlined above for
the center channel delay require an
adjustment, proceed with the following
steps:

13. Press the 

⁄

¤

buttons 

g

on the

remote once, so that 

C DELAY

TIME

appears in the 

V

. If the

display has returned to normal mode
meanwhile, press the 

button

v ı

at first.

14. Press the 

button 

i ˜

. 

15. Press the 

⁄

¤

buttons 

g

on the

remote until the desired delay time for
the center channel appears in the
display.

16. Press the 

button 

i ˜

to enter

the setting into the AVR45RDS’s
memory.

Congratulations! You have now completed
the setup, adjustment and calibration of the
AVR45RDS. You are now ready to enjoy the
finest in music and home theater listening.